Elemental analysis of New Zealand Nephrite Jade (pounamu) for forensic purposes

Pounamu (NZ jade), or nephrite, is a protected mineral in its natural form following the transfer of ownership back to Ngai Tahu under the Ngai Tahu (Pounamu Vesting) Act 1997. Any theft of nephrite is prosecutable under the Crimes Act 1961. Scientific evidence is essential in cases where origin is disputed. A robust method for discrimination of this material through the use of elemental analysis and compositional data analysis is required. Initial studies have characterised the variability within a given nephrite source. This has included investigation of both in situ outcrops and alluvial material. Methods for the discrimination of two geographically close nephrite sources are being developed. Key Words: forensic, jade, nephrite, laser ablation, inductively coupled plasma mass spectrometry, multivariate analysis, elemental analysis, compositional data analysis

自明治三十二年至同四十一年腎臟炎ニ因ル死亡統計(實數及平均) Statistique des deces par nephrite : 1899-1908 : nombres absolus et moyennes

Mode of access: Internet.

自明治三十二年至同四十一年姙娠及産ニ因ル死亡統計(實數及平均) Statistique des deces par nephrite : 1899-1908 : nombres absolus et moyennes

Mode of access: Internet.

几种不同产地软玉的岩相结构和无破损成分分析

利用质子激发X射线荧光（PIXE）、X射线衍射（XRD）、扫描电子显微镜（SEM）以及激光拉曼光谱（LRS）技术对几个来自中国新疆、俄罗斯、加拿大和新西兰等地的软玉样品的进行了岩石矿物学特征分析,从成分组成和微观织构方面比较了各地软玉的不同特征.实验结果显示了软玉作为透闪石质玉石,随着Fe2O3含量的增加,逐步向阳起石过渡.中国和田玉以其特有的毛毡状纤维交织结构,形成了均匀细腻、油脂光泽的表面特征.无破损成分分析方法为研究贵重的古玉样品提供了技术支持.

Head of a Horse, left side

Gems, Chinese, Han or Six Dynasties; 5 33/64 in.x 6 49/64 in.x 2 9/16 in.; carved nephrite jade

Sword Guard in the Form of Confronted Dragon

2 1/64 in.x 4 1/64 in.x 1 17/64 in.; jade (nephrite), carved

Wine Cup of Shah Jahan

7 23/64 in.x 5 33/64 in.; white nephrite jade

Tomb of Prince Zhuang of Liang, excavated artifact, Gui plaque with grain pattern

Hubei. Zhongxiang; 6 7/32 in.x 1 57/64 in.; nephrite

Modeling Data for Complications in Diabetics Using Logistic Regression

2010 Mathematics Subject Classification: 62P10.